Mantis Bug Tracker (MantisBT) is an open source issue tracker. In versions 2.28.1 and below, improper escaping of the redirection page (retrieved from the request's Referer header) allows an attacker to inject HTML. While this is generally not directly actionable as modern browsers will URL-encode special characters, on some specific server configurations this could poison the cache, leading to cross-site scripting. This issue has been fixed in version 2.28.2.

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-6jh4-47v2-4g37 MantisBT has Potential Referer-Based Reflected HTML Injection / XSS in Tag Update Page
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Sat, 23 May 2026 03:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 22 May 2026 21:45:00 +0000

Type Values Removed Values Added
First Time appeared Mantisbt
Mantisbt mantisbt
Vendors & Products Mantisbt
Mantisbt mantisbt

Fri, 22 May 2026 20:00:00 +0000

Type Values Removed Values Added
Description Mantis Bug Tracker (MantisBT) is an open source issue tracker. In versions 2.28.1 and below, improper escaping of the redirection page (retrieved from the request's Referer header) allows an attacker to inject HTML. While this is generally not directly actionable as modern browsers will URL-encode special characters, on some specific server configurations this could poison the cache, leading to cross-site scripting. This issue has been fixed in version 2.28.2.
Title MantisBT has Potential Referer-Based Reflected HTML Injection / XSS in Tag Update Page
Weaknesses CWE-79
References
Metrics cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-05-23T02:41:23.021Z

Reserved: 2026-04-14T14:07:59.641Z

Link: CVE-2026-40598

cve-icon Vulnrichment

Updated: 2026-05-23T02:41:17.264Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-22T22:00:12Z

Weaknesses